package com.hmdp.service.impl;

import cn.hutool.json.JSONUtil;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {

    @Resource
    private StringRedisTemplate stringRedisTemplate;
    @Override
    public List<ShopType> queryTypeList() {
        String key="cache:shopTypeList";
        List<String> range = stringRedisTemplate.opsForList().range(key, 0, -1);
        List<ShopType> shopTypeList=new ArrayList<>();
        if(range!=null&& !range.isEmpty()){
            for(String s:range){
                ShopType bean = JSONUtil.toBean(s, ShopType.class);
                shopTypeList.add(bean);
            }
            return shopTypeList;
        }
        shopTypeList = query().orderByAsc("sort").list();
        List<String> shopTypeListStr = new ArrayList<>();
        for(ShopType shopType:shopTypeList){
            String jsonStr = JSONUtil.toJsonStr(shopType);
            shopTypeListStr.add(jsonStr);
        }
        stringRedisTemplate.opsForList().rightPushAll(key,shopTypeListStr);
        return shopTypeList;
    }
}
